Method of forming piles.



No. 837,933. BATENTEDDEG. 11, 1906. 0. JOHNS & W. 1).- EYNON.

METHOD OF FORMING FILES.

APPLICATION IILEDMAYZ, 1905.

FIG. 1'

WITNESSES: gg (364 MM 7M0 6 E M LUV'ZLQLLWW iaz CL I Q ing old railroad-rails in the manufacture of UNITED STATES PATENT OFFICE.

CHARLES JOHNS, OF PITTSBURG, AND WILLIAM D. EYNON, OF PHILA- DELPHIA, PENNSYLVANIA.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application filed May 2, 1905. Serial No. 258.643.

To all whom it may concern:

Be it known that we, CHARLES Jonns, a resident of Pittsburg, in the-county ofAllegheny, and WILLIAM D. Enron, a resident of Philadelphia, in the county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in Methods of Forming Piles; and we do hereby declare the following to be a full, clear, and exact description thereof.

Our invention relates to a method of utilizmetallic piling.

Heretofore in the manufacture of metal iling it has been customary to roll the piles roiningots or billets to the proper length with an enlargement or head and a seat or recess, so that when several are joined together the head of one ile fits inthe recess of the adjoining pile to orm an interlocking joint, so as to form a continuous structure of this character which is practically watertight. The rolling of such a pile from an ingot or billet, however, is a very expensive operation, due to the eculiar shape of the pile in cross-section, w ile at the same time the several heats necessary to reduce it to the proper shapereduces the strength and rigidity of the steel.

The object of our invention is to provide a metal piling which can be made at greatlyreduced cost and at the same time one which will be stronger and more durable.

To these ends our invention comprises, generally stated, the method of utilizing old and defective rails for the manufacture of piles, which consists in heating such rails and subjecting the same to a succession of rolling-passes, providing in the rolling-passes s ace for lateral expanslon and for reduction 0? the head on the side nearest the web, it being thus made possible both to increase the width of the web and reduce the size of the head, so as to provide interlocking means through the reformation ofthe base, so that a number of the piles produced may be connected together, as above set forth.

To enable others to practice our invention,

we will describe the same with reference to,

the accompanying drawings, in which- Figure 1 re resents a set of rolls suitable for reducing t 1e rails to piling. Fig. 2 is a perspective view of the rail-before rollingl to pile form. Fig. 3 is a view of the finis ed pile. Fig. 4 shows a number connected together.

Like numerals indicate like parts in each. .In carrying out our method of forming piles we may employ any suitable ap aratus, that illustrated comprising the ro ls 2 3,

journaled in the housin s 4. Horizontal has been in use or a second or defective rail, and after the same has been heated to the ro er degree it is ut successively throiigh the asses 6, 7, ariii 8 of the rolls. (Shown in Fig. 1.) These I'OllrPitSSBS are of such shape as to provide for the lateral expansion of the rail by rolling part of the head. into the web and the reduction of the head on the side nearest-the web, so providing for the widening of the web ortion inthe finished pile. [As shown in t e drawings, in all these passes the width of the pass for the web portion is increased successively, thus providing space for the rolling of the head into the web and the lateral expansion of the blank. In its passage through the pass 6' the horizontal roll 5 will also act to reduce the size of the head 10 of the rail, while the rolls 2 and'3 will act to force the head toward the said roll 5, also acting on the flanges to bend themdownwardly and form a rudimentary groove or recess. In the passage of the blank through the ass 7 space is provided for the still furt er widening of the web portion and the further reduction of the head and increasing the depth of the recess. The rail is then passed-throu h the pass 8, which reduces the thickness 0 the web and further widens the same and gives to the rail substantially the shapeshown in Fig. 3,

By starting with an old rail not only is the necessary when starting with a billet or bloom. One peculiarity of our invention is that in this rolling of the reheated rail it is subjected to a succession of' rolling-passes, and that in these rolling-passes space is provided for lateral expansion and at the same l time for the reduction of the head on the side nearest the web, so that the metal of the head is rolled into the web, and the web is thus widened in such way as to provide the necessary width of web in the finished pile from the narrower web of the rail, and at the same time the head is so reduced in size that it can be brought to proper shape for interlocking with the recess 11 of the finished pile, which I is formed from the base-flange portion of the rail. Such widening of the web portion by the reduction of the metal of the head and i the forcmg of the same into the web 1s we beheve entirely new 111 the art and a new con ception in rolling. Furthermore, the reduction to the finished shape can be done at one heat, so that the strength and rigidity of the metal are notlessened ordestroyed. Old rails, furthermore, have the advantage of containing a very high percentage of carbon-1nueh higher than billets or blooms. Since the metal is stifler, the webs can be rolled thinner without sacrificing the necessary stillness of the piling, and the Width of the web can therefore be increased.

The piles when finished are connected up in the ordinary manner by having the head of one fit into the groove in the adjacent one, so as to form a continuous and practically watertight joint.

The shape 01"" the groove or head may vary, if desired, and it is furthermore apparent that the recess may be formed in the head of the rail instead of by the flanges, as illustrated.

I By making use of old rails or seconds we get the l benefit of the high quality of steel employed and are able to purchase the same at a low cost as compared to the cost of new material.

What we claim is- 1. The method of utilizing old and defective rails for the manufacture of piles, which i consists in heating the rail and then subjecting the same to a succession of rolling-passes l and providing in the rollingasses space for 1 lateral expansion and for tie'reduction of l the head on the side nearest the web, and I thereby providin for rolling the metal of the l l l I I web into the heat and widening the same.

2. The method of utilizing old and defect ive rails for the manufacture of piles, which consists in heating the rail and then subjecting the same to a succession of rolling-passes and providing in the rolling-passes space for lateral expansion and for the reduction of the .head on the side nearest the web, and thereby providing for rolling the metal ol the head into the web and widening the same while holding the base-flange portion of substantially the same section.

ive rails for the llllllLlfflt'llll'G of piles, which consists in heating the rail and then sul ject- I ing the same to a succession of rolling-passes and providing in the rolling-passes space for lateral expansion and for the reduction of the l The method of utilizing old and defecthead on the side nearest the web, and thereby providing for rolling thenlctal of the head into I the web and widening the same, and'at the same time bending the base-flanges down i wardly and inwardly to form a locking-recess In testin'iony whereof we, the said CnARLEs 1 Johns and WILLIAM: D. Enron, have hereunto set our hands.

CHARLES JOHNS. WILLIAM D. EYNON. Witnesses 3 .Ronnn'r C. lo'r'rni\, G. C. ltarnoxn. 

